CN202302027U - Gate valve of high-temperature and high-pressure parallel plates - Google Patents
Gate valve of high-temperature and high-pressure parallel plates Download PDFInfo
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- CN202302027U CN202302027U CN2011204320975U CN201120432097U CN202302027U CN 202302027 U CN202302027 U CN 202302027U CN 2011204320975 U CN2011204320975 U CN 2011204320975U CN 201120432097 U CN201120432097 U CN 201120432097U CN 202302027 U CN202302027 U CN 202302027U
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- flashboard
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- sealing surface
- spring
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- 238000007789 sealing Methods 0.000 claims abstract description 125
- 210000000664 Rectum Anatomy 0.000 claims description 12
- 241001669679 Eleotris Species 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- 230000000875 corresponding Effects 0.000 claims description 2
- 230000002035 prolonged Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 3
- 101700078171 KNTC1 Proteins 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000903 blocking Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Abstract
The utility model relates to a gate valve of high-temperature and high-pressure parallel plates. The gate valve comprises two valve seats and a gate plate, wherein the two valve seats are oppositely arranged at the left part and the right part; the gate plate can move up and down between the two valve seats so as to open and close the gap between the two valve seats; the valve seats are provided with valve-seat sealing surfaces; the gate plate is provided with gate plate sealing surfaces which correspond to the valve seat sealing surfaces of the two valve seats and form a sealing pair; the two valve seat sealing surfaces are mutually parallel; and the two gate plate sealing surfaces are mutually parallel. The gate valve has the advantages that the torque needed by opening and closing of the valve is small, the phenomenon that the wedge-shaped gate valve of the gate plate is easily clamped is avoided, simultaneously the wear of the sealing surfaces is reduced, and the service life is prolonged; and since medium flows smoothly in the valve, the gate valve is especially suitable for being used under the environments with high temperature, high pressure and high pressure difference.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of gate valve that comprises the parallel type flashboard.
Background technique
The seal valve seat of tradition double-flashboard gate valve is the wedge shape valve seat of wedge shape conical surface type normally; It is secondary that itself and wedge shape double-flashboard constitute wedge-type seal; As shown in Figure 1; The tradition double-flashboard gate valve generally includes like lower component: be fixed on interior two valve seats 8 as fixed block of valve body; Constitute the motion assembly left and right sides flashboard 6, the flashboard frame 5 of left and right sides flashboard is installed, is fixedly connected with the flashboard frame and drives flashboard and move up and down with the valve rod 1 of On/Off valve, connecting pin 2, locking nut 3, upward positioning pawl 4, plunger tip 7, following positioning pawl 9 and retaining screw 10; Left and right sides flashboard constitutes two sealing pairs between two valve seats and with two valve seats, left and right sides flashboard is connected on the flashboard frame with following positioning pawl is spacing through last positioning pawl, and the said positioning pawl of going up is fixedly connected with the flashboard frame with retaining screw through locking nut respectively with following positioning pawl; Valve rod is provided with and is used for fixing the pin hole that connects said connecting pin, and said flashboard frame is fixedly connected with said valve rod through said connecting pin.
In the course of the work through actuate valve stem drive the motion assembly on the whole, down motion carry out open, closing motion.When closing, valve rod drives the wedge shape double-flashboard and moves downward, and after sealing surface of seat contact, valve rod continued to drive the wedge shape double-flashboard downwards, makes flashboard at the wedge shape space chock off of valve seat, and the flashboard sealing surface seals with the realization of sealing surface of seat tight connecting.
Could realize effective seal owing to also need reach certain positive pressure after flashboard sealing surface and sealing surface of seat coincide, therefore, have following defective when adopting the wedge-type seal structure to realize sealing usually:
1, the wedge shape flashboard positive pressure that puts on the wedge shape valve seat is produced by the downward thrust of valve rod; Its size depends on the size (shown in Fig. 3-a) of the downward thrust of valve rod, is set to example with 5 ° key grooves, and the relation between sealing positive pressure Pm and the downward thrust Px of valve rod is: Pm=Px * tg5; (tg5=0.0875); Hence one can see that, and the ratio that the downward thrust of valve rod is converted into the sealing positive pressure is very little, reach desirable sealing effect; The downward thrust of the valve rod that needs is just bigger, and the moment that then puts on the valve rod requires also bigger;
2, because sealing surface is a wedge shape, reaches desirable sealing effect and just require flashboard to go deep into the degree of depth certain in the valve seat, and going deep into along with flashboard; The positive pressure speedup is exceedingly fast, and the downward thrust of required valve rod also sharply increases, along with the increasing of seal degree; Flashboard jam-pack, lock in valve seat is tight, and relies on consequent compressive force to reach sealing, still; Along with the force of sliding friction between flashboard and the sealing surface of seat that also has of the deep increase of flashboard, therefore, whole seal process is valve opening hour especially; The wearing and tearing of sealing surface are very fast, cause seal leakage easily, and working life is very short;
3, because the sealing of wedge-type seal face relies on is that the continuous lock of flashboard in valve seat tightly realized, therefore, its seal degree is difficult to judge; And owing to can not limit stoper be set, therefore, be difficult to control for the thrust size of valve rod in case can't reach desirable sealing effect; Till normally having reached with sealing; Or the motion assembly reach end of travel till (twist motionless till), thus owing to used very big power when closing; Be easy to cause being difficult to opening maybe can't open, stuck phenomenon often takes place when especially under hot environment, using;
4, owing to forming the opening that V-type makes progress between two sealing surfaces of wedge shape valve seat, therefore, in the flashboard opening process and after opening; MEDIA FLOW is when the valve seat latus rectum; Because the sealing surface of flashboard and valve seat is in separated state, MEDIA FLOW can upwards spring up, and streams phenomenon around the flashboard bottom to the formation of top hole flow; Cause not steady (shown in Fig. 4-a) of media flow, even can cause the vibration of whole tubing.
The model utility content
In order to overcome the above-mentioned defective of existing technology, the purpose of the utility model is to provide a kind of HTHP parallel-plate gate valve, and moment of torsion required when it is closed is little; The wearing and tearing of sealing surface are little; Long service life, stuck phenomenon is few, medium flowing steadily when flowing through gate valve.
The main technical schemes that the utility model adopts is:
A kind of HTHP parallel-plate gate valve; Comprise the valve seat that is oppositely arranged about two and can be in upper and lower motion between two said valve seats to open and to seal the flashboard in space between two said valve seats; Said valve seat is provided with sealing surface of seat, and said flashboard is provided with flashboard sealing surface corresponding with the sealing surface of seat of two said valve seats respectively and the formation sealing pair, and two said sealing surface of seats are parallel to each other; Two said flashboard sealing surfaces are parallel to each other, and constitute the parallel type flashboard.
Said flashboard can split-type structural, comprises left and right flashboard, and two said flashboard sealing surfaces are located at respectively on the left and right flashboard, and after said left and right flashboard was installed, two said flashboard sealing surfaces were parallel to each other.
Preferably, be provided with spring or the cluster spring that applies forward thrust simultaneously to two said flashboard sealing surfaces between the said left and right flashboard.
The center of said spring or cluster spring can be provided with spacing mandrel.
Preferably, a relative end of said left and right flashboard is provided with circular groove separately, and the transversal size of said circular groove and the size of said spring or cluster spring adapt.
Said spring or cluster spring can be belleville spring or belleville spring group.
The quantity of said belleville spring is preferably several, and several said belleville springs are connected with involutory or superimposed mode and constituted said belleville spring group.
For above-mentioned any described HTHP parallel-plate gate valve; Preferably; The central axes of the central axis of the valve seat latus rectum of two said valve seats and the inlet/outlet medium channel of valve; The equal diameters of the valve seat latus rectum of two said valve seats, the central axis of the valve seat latus rectum of said valve seat is perpendicular to said sealing surface of seat.
Preferably; The edge of the opposing side of two said valve seats is provided with the valve seat elastic washer; The plane outwardly of said valve seat elastic washer constitutes said sealing surface of seat; The left side of said left flashboard or the right side of right flashboard is provided with or be not provided with the flashboard cushion, when being provided with said flashboard cushion, the plane outwardly of said flashboard cushion constitutes said flashboard sealing surface.
Preferably, the edge of the edge of said flashboard or said flashboard sealing surface is dull and stereotyped blade-like.
Preferably, said flashboard cushion is the resilient sleeper-bearing on the right side of the left side that covers whole or the said left flashboard of part or right flashboard.
The beneficial effect of the utility model is:
Owing to adopt parallel sealing surface of seat to constitute parallel sealing with parallel flashboard sealing surface; Therefore; Reduced close with opening process in to the sealing surface wearing and tearing and the consumption of (comprising sealing surface of seat and flashboard sealing surface); Especially reduce the wearing and tearing and the consumption of sealing surface when valve opening is very little, prolonged effective sealing life of sealing surface;
Because what the sealing of valve was adopted is the thrust of spring; Therefore, can be according to actual needs (as according to pressure medium etc.) carry out the required sealing positive pressure of sealing that theoretical calculation and actual test obtain valve, reach required seal pressure value to guarantee that effectively sealing gets final product; Reduced force of sliding friction to sealing surface; Especially eliminated the valve opening hour problem very big, reduced wearing and tearing, consumption, prolonged working life sealing surface to the force of sliding friction of sealing surface;
In addition; Owing to be provided with the spring that is used to provide the sealing positive pressure between left and right flashboard; Make the sealing positive pressure determine, and do not receive the influence of valve rod thrust, therefore by the thrust that spring produces; The seal degree of having eliminated when wedge-type seal relies on the sealing of valve rod thrust is difficult to control problem; Eliminate easy appearance sealing excessively and then the stuck problem that maybe can not open that causes being difficult to open occurs, particularly eliminated for the valve of working under the hot environment and stuck problem very easily occurs, more be applicable to the workplace of HTHP, High Pressure Difference;
Because the setting of the blade-like that the edge of parallel type flashboard is dull and stereotyped; Make it be flexible action, can not only prevent valve base surface bonding dirt impurity, also make stress be dispersed on the wide flat sealing surface with contacting of valve seat; Reduce surface stress, prolonged working life;
Because the dead in line of the valve seat latus rectum of two valve seats and the equal diameters of the two; Therefore; Medium with parallel stream to the valve seat of flowing through; The jiggly problem of media flow such as can not occur gushing on the medium that wedge valve exists, medium streams, make the mobile state that is in steady and smooth of medium can not produce the pipe-line system vibration.
Description of drawings
Fig. 1 is the structural representation of existing double-flashboard gate valve;
Fig. 2 is the structural representation of the parallel-plate gate valve of the utility model;
Fig. 3-a is the force analysis schematic representation of the seal process of existing double-flashboard gate valve;
Fig. 3-b is the force analysis schematic representation of seal process of the parallel-plate gate valve of the utility model;
Fig. 4-a is the media flow schematic representation of existing double-flashboard gate valve;
Fig. 4-b is the media flow schematic representation of the parallel-plate gate valve of the utility model;
Fig. 5 is the structural representation at the blade-like flashboard edge of the utility model.
Embodiment
, through embodiment the utility model is described in more detail the utility model in order better to explain below in conjunction with accompanying drawing so that better understand.
Referring to Fig. 2 to Fig. 5; The utility model provides a kind of HTHP parallel-plate gate valve, thereby comprises two valve seats 15 in upstream and downstream of being oppositely arranged about two and can realize valve opening and the flashboard 12 of closing to open and to seal between two said valve seats the space in upper and lower motion between two said valve seats.Said valve seat is provided with sealing surface of seat; Said flashboard is provided with two flashboard sealing surfaces; Two said sealing surface of seats are parallel to each other; Two said flashboard sealing surfaces also are parallel to each other, and said two sealing surface of seats and said two flashboard sealing surfaces match and constitute the two pairs of sealing surfaces parallel to each other in upstream and downstream, and the two pairs of sealing surfaces in upstream and downstream parallel to each other constitute two sealing pairs in upstream and downstream.
Constitute two sealing pairs that sealing surface is parallel to each other owing to adopted two sealing surface of seats parallel to each other to match with two flashboard sealing surfaces that are parallel to each other; Therefore; In the process of the upper and lower motion On/Off of flashboard valve, reduced wearing and tearing to sealing surface, prolonged its working life.
And; Because two sealing pairs are made up of two pairs of sealing surfaces parallel to each other, therefore, in the process of the upper and lower motion On/Off of flashboard valve when not being in complete closing state as yet (be valve); Or even the valve complete opening time; The wedge shape flashboard can not occur and open the problem of gushing on the medium that the back exists, can not occur yet MEDIA FLOW around the bottom of flashboard and to the upper cavity position flow form stream phenomenon (medium streams), remain media flow steadily.
In addition, because flashboard and valve base chamber are plane sealing, therefore; When closing; Need not be strict with, not exist, as seal not in place, poorly sealed, sealing back unlatching difficulty etc. because of material is different, the different anomalies that produce of thermal expansion coefficient to the location of valve rod.
Said flashboard can be split-type structural, for example can comprise left and right flashboard, and two said flashboard sealing surfaces can be located at respectively on the said left and right flashboard, and after said left and right flashboard was installed, two said flashboard sealing surfaces were parallel to each other, and constitute the parallel type flashboard.
In order to provide evenly and sealing positive pressure and the force of sliding friction being convenient to control; Preferably; Compression is provided with spring or the cluster spring 14 that pretightening force (being generally thrust) is provided for the sealing of two the said sealing pairs in upstream and downstream between the said left and right flashboard; So that utilize the thrust of spring that the flashboard forward is pressed in sealing surface of seat to reach sealing effect, the thrust direction that is preferably spring is perpendicular to sealing surface, so that the thrust of spring converts the sealing positive pressure to greatest extent into.
This kind is arranged so that size and the seal degree of sealing positive pressure can't help the downward thrust size decision of valve rod; Reduced the required downward thrust of valve rod to a certain extent; Reduced the required moment of torsion that is applied on the valve rod of opening and closing valve; Also overcome the defective that wedge shape flashboard required moment of torsion that applies when sealing is big, difficulty is opened in the sealing back; Especially it is more obvious to be applied to hot environment following time, and the structure setting of the utility model receives Influence of Temperature less, is not easy the phenomenon that occurs blocking.
Because unlatching, closing motion move by sliding type and accomplish, even it is stressed to produce non-perseverance, also can not produce the concave-convex type cut on the surface of sealing surface, and sealing surface is had the certain protection effect, have effectively prolonged working life.
In addition, owing to moment of torsion required in valve opening, the pass closed procedure is less, and more even; Therefore, close and need put on the pushing away of valve rod in the process with Open valve, pulling force is all smaller, is convenient to control; When the unlatching of configuration Electric actuator, Pneumatic actuator, gear-box driving valve, when closing, under the condition of same specification pressure rating, required specification of equipment is littler than wedge shape flashboard valve; And, because open, the moment of torsion when closing is little, can also alleviate stress and the stress fatigue of generation on flashboard sealing surface and the sealing surface of seat greatly; Therefore, can reduce the wearing and tearing of sealing surface, be that sealing is reliable, the key factor of long service life.
Said spring or cluster spring preferably are located at the heart portion of said left and right flashboard or the position of upper middle, are beneficial to seal the even distribution of positive pressure and the stationarity of in seal process, moving, and are convenient to the upper and lower motion of flashboard.
The center of said spring or cluster spring can be provided with and be used for spring is carried out spacing spacing mandrel 13; The length of said spacing mandrel can be less than the length of installation of said spring or cluster spring, be preferably be equal to or slightly less than said HTHP parallel-plate gate valve close after this spring or the cluster spring length after compacted.
Preferably; A relative end of said left and right flashboard is provided with the groove that is used to install said spring separately; The degree of depth of said groove can equal or be slightly larger than length half the of said spacing mandrel; Said groove can be circular groove, and the transversal size of said circular groove and the size of said spring or cluster spring adapt.
Be preferably the setting that is mutually symmetrical of groove on the said left and right flashboard.
Said spring or cluster spring can be belleville spring or belleville spring group.
The quantity of said belleville spring is preferably several, and several said belleville springs can series, parallel or string and mixing connection.Being preferably several said belleville springs and connecting with involutory mode and constitute said belleville spring group, for example can be that 8 belleville springs are in series (as shown in Figure 2), makes the forward thrust that receives equal size on the sealing surface of said left and right flashboard.
Preferably; In above-mentioned any said HTHP parallel-plate gate valve; The quantity of said spring or cluster spring can be for some, to improve sealing positive pressure and the distributing homogeneity of force of sliding friction and the stability in the motion seal process that spring thrust was provided, for example; Can be three groups of springs or the cluster spring of being located at said flashboard heart portion, top, bottom respectively, also can be five groups of springs or the cluster spring of being located at said flashboard heart portion, top, bottom, left part, right part respectively.
Preferably; The central axes of the central axis of the valve seat latus rectum of two said valve seats of above-mentioned any said HTHP parallel-plate gate valve and the inlet/outlet medium channel of valve; The equal diameters of the valve seat latus rectum of two said valve seats, the central axis of the valve seat latus rectum of said valve seat is perpendicular to said sealing surface of seat.
Preferably; The valve seat latus rectum of said valve seat and the medium channel of said HTHP parallel-plate gate valve are concentric parallel and diameter is identical (its medium channel is the equal coupling road when being said valve complete opening); So that when valve opening; The media flow of its medium channel of flowing through presents plateau (shown in Fig. 4-b), avoids vibration that occurs pipe-line system etc.
Be preferably the medium channel of the sealing surface of said sealing pair perpendicular to said valve.
In order to improve sealing effect; The edge of the opposing side of two said valve seats can be provided with the valve seat elastic washer; The plane outwardly of said valve seat elastic washer constitutes said sealing surface of seat; Can be provided with on the left side of said left flashboard or the right side of right flashboard or be not provided with the flashboard cushion, when being provided with said flashboard cushion, the plane outwardly of said flashboard cushion constitutes said flashboard sealing surface.Said flashboard cushion can be the flashboard elastic washer, also can be the resilient sleeper-bearing on the right side that covers the whole or left side of the said left flashboard of part, right flashboard.
The width of said flashboard elastic washer is preferably more than the width of said valve seat elastic washer.The plane minimum dimension of said resilient sleeper-bearing is preferably more than the internal diameter of said valve seat elastic washer, more preferably greater than its external diameter.
Preferably, the edge of said flashboard or said flashboard sealing surface can be dull and stereotyped blade-like (as shown in Figure 5, Fig. 5 is the partial enlarged drawing of Fig. 3-b); To guarantee that flashboard and contacting of valve seat are soft actions, can not only remove dirt impurity, prevent valve base surface bonding pollutant; Can also stress be dispersed on the wide flat sealing surface; Reduce the stress of sealing surface, make stress minimize, effectively prolonged working life the influence of sealing surface.Its concrete set-up mode can for: the outer ledge of said flashboard or flashboard sealing surface is provided with the blade-like chamfering.
The chamfer angle α of said blade-like chamfering is preferably and is not more than 5 °, has both helped the gap between two said valve seats of flashboard turnover, does not influence sealing effect again.
Preferably; Above-mentioned any said HTHP parallel-plate gate valve also comprises the following parts that constitute the motion assembly with said flashboard jointly: be used to install the flashboard frame 5 of flashboard, be fixedly connected with the flashboard frame and drive flashboard and move up and down with the valve rod 1 and the connecting pin 2 of On/Off valve, go up positioning pawl 4 and locking nut 3; Said flashboard is connected on the said flashboard frame through positioning pawl is spacing on said; The said positioning pawl of going up is fixedly connected with said flashboard frame through said locking nut; Said valve rod is provided with the pin hole that is used for fixing said connecting pin, and said flashboard frame is fixedly connected with said valve rod through said connecting pin.
The stuck phenomenon that the HTHP parallel-plate gate valve of the utility model has avoided wedge shape flashboard gate valve to occur easily; Reduced abrasion simultaneously to sealing surface; Improved its working life, especially be adapted to the application under the hot environment, the trend that replaces wedge shape flashboard gate valve has been arranged.
In order to express easily, this specification alleged " on ", illustrated orientation in the D score, " left side ", " right side " all relative Figure of description, do not constitute restriction to true bearing.
Claims (10)
1. HTHP parallel-plate gate valve; It is characterized in that comprising the valve seat that is oppositely arranged about two and can be in upper and lower motion between two said valve seats to open and to seal the flashboard in space between two said valve seats; Said valve seat is provided with sealing surface of seat; Said flashboard is provided with flashboard sealing surface corresponding with the sealing surface of seat of two said valve seats respectively and the formation sealing pair, and two said sealing surface of seats are parallel to each other, and two said flashboard sealing surfaces are parallel to each other.
2. HTHP parallel-plate gate valve according to claim 1 is characterized in that said flashboard is a split-type structural, comprises left and right flashboard, and two said flashboard sealing surfaces are located at respectively on the left and right flashboard.
3. HTHP parallel-plate gate valve according to claim 2 is characterized in that being provided with between the said left and right flashboard spring or the cluster spring that apply forward thrust simultaneously to two said flashboard sealing surfaces.
4. HTHP parallel-plate gate valve according to claim 3; It is characterized in that said spring or cluster spring are belleville spring or belleville spring group; The center of said spring or cluster spring is provided with spacing mandrel; A relative end of said left and right flashboard is provided with circular groove separately, and the transversal size of said circular groove and the size of said spring or cluster spring adapt.
5. HTHP parallel-plate gate valve according to claim 4 is characterized in that the quantity of said belleville spring is several, and several said belleville springs are connected with involutory or superimposed mode and constituted said belleville spring group.
6. according to claim 1,2,3,4 or 5 described HTHP parallel-plate gate valves; The central axes of inlet/outlet medium channel of central axis and valve that it is characterized in that the valve seat latus rectum of two said valve seats; The equal diameters of the valve seat latus rectum of two said valve seats, the central axis of the valve seat latus rectum of said valve seat is perpendicular to said sealing surface of seat.
7. HTHP parallel-plate gate valve according to claim 6; The edge that it is characterized in that the opposing side of two said valve seats is provided with the valve seat elastic washer; The plane outwardly of said valve seat elastic washer constitutes said sealing surface of seat; The left side of said left flashboard or the right side of right flashboard is provided with or be not provided with the flashboard cushion, when being provided with said flashboard cushion, the plane outwardly of said flashboard cushion constitutes said flashboard sealing surface.
8. HTHP parallel-plate gate valve according to claim 7 is characterized in that the edge of said flashboard or the edge of said flashboard sealing surface are dull and stereotyped blade-like.
9. HTHP parallel-plate gate valve according to claim 8; It is characterized in that also comprising the following parts that constitute the motion assembly with said flashboard jointly: be used to install the flashboard frame of flashboard, be fixedly connected with the flashboard frame and drive flashboard and move up and down with valve rod, the connecting pin of On/Off valve, go up positioning pawl and locking nut; Said flashboard is connected on the flashboard frame through positioning pawl is spacing on said; The said positioning pawl of going up is fixedly connected with the flashboard frame through said locking nut; Said valve rod is provided with the pin hole that is used to install said connecting pin, and said flashboard frame is fixedly connected with said valve rod through said connecting pin.
10. HTHP parallel-plate gate valve according to claim 9 is characterized in that the resilient sleeper-bearing of said flashboard cushion for the right side of the left side that covers whole or the said left flashboard of part or right flashboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204320975U CN202302027U (en) | 2011-11-04 | 2011-11-04 | Gate valve of high-temperature and high-pressure parallel plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204320975U CN202302027U (en) | 2011-11-04 | 2011-11-04 | Gate valve of high-temperature and high-pressure parallel plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302027U true CN202302027U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204320975U Expired - Fee Related CN202302027U (en) | 2011-11-04 | 2011-11-04 | Gate valve of high-temperature and high-pressure parallel plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302027U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062427A (en) * | 2013-01-11 | 2013-04-24 | 李原华 | High-pressure flat gate valve |
| CN104832672A (en) * | 2015-05-12 | 2015-08-12 | 开封高中压阀门有限公司 | Gate valve with parallel double-disc structure |
| CN105065699A (en) * | 2015-07-23 | 2015-11-18 | 氟络塞尔特种阀门(苏州)有限公司 | Gate valve |
| CN105972237A (en) * | 2016-07-14 | 2016-09-28 | 昆山维萨阀门有限公司 | Parallel slide gate valve |
| CN115325194A (en) * | 2022-10-17 | 2022-11-11 | 中国空气动力研究与发展中心高速空气动力研究所 | Energy-saving valve easy and convenient to disassemble, assemble and maintain |
| CN115325194B (en) * | 2022-10-17 | 2023-02-03 | 中国空气动力研究与发展中心高速空气动力研究所 | Energy-saving valve easy and convenient to disassemble, assemble and maintain |
-
2011
- 2011-11-04 CN CN2011204320975U patent/CN202302027U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062427A (en) * | 2013-01-11 | 2013-04-24 | 李原华 | High-pressure flat gate valve |
| CN104832672A (en) * | 2015-05-12 | 2015-08-12 | 开封高中压阀门有限公司 | Gate valve with parallel double-disc structure |
| CN105065699A (en) * | 2015-07-23 | 2015-11-18 | 氟络塞尔特种阀门(苏州)有限公司 | Gate valve |
| CN105065699B (en) * | 2015-07-23 | 2017-11-14 | 氟络塞尔特种阀门(苏州)有限公司 | Gate valve |
| CN105972237A (en) * | 2016-07-14 | 2016-09-28 | 昆山维萨阀门有限公司 | Parallel slide gate valve |
| CN115325194A (en) * | 2022-10-17 | 2022-11-11 | 中国空气动力研究与发展中心高速空气动力研究所 | Energy-saving valve easy and convenient to disassemble, assemble and maintain |
| CN115325194B (en) * | 2022-10-17 | 2023-02-03 | 中国空气动力研究与发展中心高速空气动力研究所 | Energy-saving valve easy and convenient to disassemble, assemble and maintain |
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Owner name: SUNGO VALVE GROUP CO., LTD. Free format text: FORMER OWNER: ZHAO LEI Effective date: 20140521 |
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